A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6105-01-569-4456
NSN 5935-01-085-6507
NSN 5895-00-617-6340
NSN 6240-01-079-6622
NSN 5920-00-598-0469
NSN 5996-01-461-1980
NSN 5950-01-650-4243
NSN 5975-00-001-8016
NSN 5905-00-494-9914
NSN 5895-01-352-6674
NSN 6320-01-503-7180
NSN 5915-01-625-0109